The highest climate return comes from concentrating reduction measures on the domains with the largest potential: energy, mobility and the built environment. Together, these three domains deliver the largest share of the direct reduction opportunity in the ambitious scenario.
Prioritisation does not mean that other sectors disappear from view. Agriculture, industry and land use are needed for methane reduction, material transition, biobased value chains and carbon sequestration. The source supports a portfolio approach: start with the largest sources while connecting the other domains to system value.